Breaker valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
Jul 11, 1988
filing date -
Sep 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A main fluid passageway is provided in a main valve body between first and second ports formed and an auxiliary passageway having its opposite ends closed is also formed in the valve main body so as to intersect the main passageway. A spool is slidably mounted in the auxiliary passageway and gap spaces are provided at the opposite ends of the spool. One of the gap spaces communicates with the first port, while the other gap space communicates with the second port. A locking section is provided on the spool and a cooperating latch is provided in the valve main body. Upon occurrence of an emergency, the spool is moved to shut off the main passageway and the latch is caused to engage the locking section resulting in generation of an alarm. Under such condition, even if the pressure of the fluid at the valve varies, the locked condition of the spool can be maintained.
First Claim
Other Claims data not available